Poration



Get. 1 1927.

A. E. RHoADEs Quicx ACTING WARP STOP MECHANISM F408 vumrzns Fil ed Feb. 11. 1926 RA PIDLY ITOTATI NG ACTUATOR 2 Sheets-Sheet 1 lo a a I; A. E. RHOADES QUICK ACTIIiG WARP ST OP MECHANISM FOR WARPBRS Filed Feb. ll. 1926 2 Sheets-Sheet 2 v Fig. 2.

5 g x 4o E i i-1 :2

Inventor.

Alonzo E. Hhoods WMXM' Atiys.

Patented Oct.- 18 1927.

UNITED STATES 1,646,361 PATENT OFFICE.

ALONZO E. RHOADES, F HOPEDALR MASSACHUSETTS, ASSIGNOR TO IJRA'EER COR- PORATION, OF HOPEDALE, MASSACHUSETTS, A CORPORATION OF MAINE.

QUICK-ACTING WARP STD? MECHANISM FOR W'ARPERS.

Application filed February broken warp many yards of the warp are apt to be carried along before thewarper is com-- pletely stopped 50 that in piecing the ends it is almost impossible not to cross them for if the ends are wound around the beam, or the broken end has to be found after it has been wound upon the beam, it is almost impossible to-piece up and keep the warps in line. Consequently, frequently. the warps are crossed. By the present-invention the warper is stopped in a small fraction of the time required for the stoppage of the ordinary warper; consequently, there is much less run-over of the yarn; F urth-ermere, the prompt stoppage of the warper enables the broken end readily to be found before it has been'wound upon the beam, thus saving a crossing of the warps.

The present invention comprises several (:litl'crent means for more quickly stopping the warper after deteotion of a broken warp,

which means may be employed iTlClQpSTltlC1liL- ly of each other, but preferably are used conjointly. First, detector mechanism is employcd in which the falling drop wire engages and immediately arrests the moving detector bar in either direction of the move ment thereof, instead of arresting the bar in only a single direction of its movement. Second, a yielding controller is employed, for transmitting movement from a continually moving vibrator to the movable detector bar, which is so connected to a knock-cit device that the knock-off device will be actuated during either direction of movement of the vibrator to cause a stoppage of the warper. Third, a continually moving actuator is provided for the knock-off device having means operable at a greater speed than the speed of movement of the vibrator to actuate the knoceofi device when engaged thereby and will, therefore, immediately 'of which the warps are led.

11, 1926. Serial No. 87,643.

cause a stoppage of the warper. When, therefore, these instrumentalities are used con o1ntly a very prompt stoppage of the warper is effected.

In the preferred embodiment of the invention disclosed herein anovel form of drop wire mechanism is shown which is made the 'SHbJOCt matter ofa separate application for patent filed concurrently herewith Serial Number 87,642 and patented October .5,

Other objects and features of the invention Wlll more fully appear from the following description and the accompanying drawings and will be particularly pointed out in the claims.

The preferred embodiment of the invention 18 disclosed herein as applied to a warper of the usual type, only a suflicient portion of the warper frame and mechanism bein illustrated to show themanner in which at;

present invention is associatedtherewith.

In the drawings:

I Fig. l isan end elevation of a warper frame showing the invention applied there to; V i

Fig. 2 is a plan View of the end portion of the warper illustrated in Fig. 1;

Fig. 3 is a sectional view on line 3-3 Fig. 1, viewed from the top; and,

Fig. 4 is a perspective View of the preferred form of drop wire and co-operating detector bars illustrated in Fig. 1.

The portion of the warper shown in Fig. 1 con'iprise'i an end frame 1 having mounted upon it a stand 2 in which the forward upper guide. roll 3 is mounted, a bracket 4 upon which the under guide bar 5 is mounted, and a bracket (3 which is secured to the front of the end frame and is provided with a slot 7 to receive the journal of the front guide roll 8. A usual transverse bar 9 extends from one end frame to the other and is provided with a comb 10 between the reeds The warp 11 runs from the creel beneath the guide roll 3,

"over the guide barf), thence through the eyes of the drop wires and over the front guide roll 8 to the usual 'warper beam (not shown). I

The preferred form of detector mechanism comprises two series or banks of drop -wires 12 and 13, each of the drop wires 12 having at its upper end an eye 14 with a threading slotleading thereto,and at its sirably are provided with cylindrical ends and with opposite flat faces throughout the section upon which the drop wires are pivotally mounted and the cylindrical bases of I the drop wires are provided withslots 19 of sufficient width to pass over the flattened section of the drop wire bar sothat the drop wires can be individually assembled upon and removed from the drop wire bar by merely rotating the drop wire bar sufliciently to permit such assemblage or removal. Normally the drop wirebars are rotated to a position which will prevent the drop wires frombeing detached therefrom during the operation of the warper. The drop wire bars may be secured in adjusted positions by means of an arm 20 which is fixedly secured to the end of the drop wire .bars and provided with a set screw 21 adapted to abut against the .outer face of the end frame.

' I J The detector bars, which co-operate' with the drop wires, 12, desirably comprise a stationary bar 22 and a juxtaposed relatively movable bar 23' and similar stationary and relatively movable detector bars 24 and 25 cooperate with the drop-wires 13. Each of these detector bars desirably is provided with teeth presenting vertical adjacent faces spaced apart a suflicient distance to receive a .falling drop wire therebetween so that when the drop wires engage the complementary teeth of the stationary and rela-.

tively movable detector bars the movable detector bar will be arrested immediately in have extensions 26 and 27 which are not toothed and/which are connected at their .endsrespectively to hearing blocks 28 and 29 mounted upon studs 30 and 31 extending upwardly from the horizontal plate-32 of a transmitter which is actuated by a continually moving vibrator to impart a reciprocatory vmovementto the detector bars. The transmitter plate 32 is pivotally mounted at approximately its center upon a vertical shaft 33, the upper end of which is mounted in a bracket 34'secured to the end frame and;

at its lower end is mounted in a bracket 35' which also is secured to the end frame. An arm or post 36, which preferably is'integral with the 'plate 32, extends downwardly therefrom and'is provided with a laterally extending boss 37 having an upwardly extending stud 38 upon which is pivotally mounted a horizontally extending arm 39 whichis connected by a pivot 40 to one end I of a link'41, the other end of which is connected by a stud 42 to a sickle-shaped lever 43 which. is actuated by a continually moving vibrator.

The sickle-shaped lever has an integral,. upwardly extending arm 44 which is piv otally mounted atits upper end upon astud 45 extending laterally from an arm 46 of the bracket 34 whichis mounted upon the end frame. The reciprocatory .movement. imparted by the vibrator to the low-er end of the sickle-shaped lever 43 oscillates thislever about its pivot 45 in parallelism with the plane of the end frame. The reciprocatory motion of the sickle-shaped lever is transmitted through the'links41 and 39 to the arm or post 36 which depends from the plate 32 which is pivoted upon the vertical shaft 33, thus oscillating the plate 32 about the axis of the shaft 33 andimparting a longitudinal reciprocatory movement of the respective movable detector bars 23 and 25. The assemblage thus described may be broadly considered a transmitter for translating the oscillatory movement of the vibrator, which is in a plane parallel tothe plane of the end frame, into a r-eciprocatory movement for the detector bars which is at right angles to the plane of'the end frame.

Suitable means are provided for causing the arrest of either of the movable detector lUi) bars 23 or 25 to actuate a knockoff device to stop the warper. In the particular construction. illustrated the knock off device comprises a depending arm 47 which is pivotally mounted at its upper end upon a stud 48 projecting laterally from the end an arm 49 which is'pivotally mounted upon a stud 50 upon a bracket 51 which is secured to the end frame. The bracket 51 desirrbly is provided with a lug 52 to limit the upward movement of the arm 49, and theldepending knock-off device, and is also provided with a lug 53 in a position to be engaged by the arm 49 to limit the downward movement of the knock-off device, 47. The lower end of the knock-off device is provided with a laterally extending stud 54 which engages theeye in one end of a rod 55, the other endofwhich-is connected to the usual knock-off lever 56 of the warper which, when 'tionally in the re-entrant angle.

moving the knock-off device 47 upon arrest of a detector bar to elfectthe stoppage. of the warper. In the present invention means are provided which will cause a much quicker action of the knock-oil mechanism than in previous construe-hens. In the preferred embodiment of the invention illustrated herein the knock-off device a? is provided with an ofliset lower end 58, the horizontal portion of the offset being provided with a curved face 59 which engages an arc uate surface 60 of a controller in the form. of an arm or lever 61 which is pivotally mounted at its opposite end upon a stud 62 extendingfrom a, lateral arm 63 of a continually moving vibrator 64. 'lhevibrator (34' is pivotally mounted at its lower end upon a stud or shaft (35 and is provided at a short distance from the lower end with a lateral extension 66 which is connected by a pinand slot connection 67 to the upper end of an arm 68 which is rigid with the usual rock shaft 69 of the warper which is continually vibrated.

A spring 70, seated in a suitable socket 1n the shoulder at the upper end of the vibrator from which the arm 63 extends, engages at its upper end a complementary socket 71 extending upwardly from the under face of the central portion of the controller 61 and holds the controller in engagement with the lower end of the sickle-shaped lever as of the transmitter. The spring 70, by thus holding the controller in a raised position, also holds the knock'off device in an elevated position out of the path of a continually moving actuator 72 during the normal operation of the warper.

The continually moving actuator may be of any suitable construction and is so constructed as to actuate the knock-off device 47 when engaged thereby more quickly than if the knock-off device were actuated by the movement of the vibrator itself. In the preferred constraction the actuator is in the formof a star wheel 72 which is fixedly secured upon a shaft 73 which is continuously rotated at a speed which will cause a prompt actuation of the knock-oil meclmnisn'i when the knock-off device is engaged thereby. The star wheel actuator 72 is so located that its teeth 74 clear the lower end of the knock off device li'during the normal operation of the warper when the knock-off device is held in elevated position by the controller 61 which is forced upwardly by the spring 70. The controller 61 is provided with a camshaped upper face preferably in the form of a re entrant angle presenting substantially symmetrically inclined flat faces 75 and 76. The lower end of the sickle-shaped arm 43 is provided with a cylindrical, lateral extension 77 which normally rests fric- This spring-pressed controller 61 therefore constitutes a connection between the vibrator 64 and thearm 43 which yields to give away thereof is heldstationary. As the vibrator moves continuously, the controller 61 will be forced downwardly by the end 7 7 of the then stationary sickle lever in either direction of its reciprocation. Such downward movement of the controller will permit the knock-elf device 47 to fall by gravity so that its lower 'end, which desirably is provided with a flat face 78, will extend into the path of the teeth 74 of the continually rotating actuator. Upon engagement of the lower eno of the actuator with a tooth 7a of the rotating actuator the knock-off device will be swung laterally (to the left in Fig. 1) and will thereby act through the rod 55 to cause the usual knock-off lever 56 to knock off the shipper 57 and thereby stop the warper.

By reason of the construction thus de scribed it will be obvious that a very prompt'stoppage of the warper will be effected upon detection of a broken or unduly sagging Warp for the reason that the detector bar will be arrested in either direction of its movement and will immediately stop the movement of the sickle lever-43. Such arrest of the movement of the sickle lever in turn will actuate the controller 61 in either direction of its movement to permit the knockoff device 47 to drop into the path of the teeth of the rotating actuator. As the rapidly moving teeth of the rotating actuator are arranged to actuate the knock-off device 4.7 an almost immediate actuation of the usual lever 56, which knocks off the shipper lever, is effected.

It will be'understood that the particular embodiment of the invention disclosed herein is of an illustrative character and is not restrictive and that various modifications may be made 1n construction, form and operation of the various mechanisms herein described wlthln the meaning and scope of the following claims. For example, the condrop wire during the movement thereof in either direction.

It will also be obvious that inasmuch as the present invention embodies three distinct IUU means for speeding up the mechanism'for stoppingthe warper such means may be em- 'ployed singly orin combination-with any Lil other, and that they are preferably, but not necessarily, used conjointly in the manner disclosed herein;

' Having thus described the invention, what is claimed as new, and desired to be secured by Letters Patent, is:

1. Quick-acting warp stop mechanism for ,wvarpers comprising detector mechanism, a

continually moving vibrator, a knock-off device, a continually moving actuator having means moving at greater speed than the speed of movement of said'vibrator to actuate said ki' ock-oif device when engaged therewith" and means controlled by said detector mechanism normally preventing. engagement of said knock-off device'with said actuator, but operable by said detectormechanism, upon detection of a broken or sagging warp, to cause such engagement and thereby effect a quick stoppage of the warper.

2. Quick-acting Warp stop mechanism for warpers comprising detector mechanism, a continually moving vibrator, a knock-off device, a continuously rotating actuator having a plurality of means any one of which is adapted to actuate said knock-off mechanism when engagedtherewith and means, 1ncluding a connection yielding to give way, controlled by said detector mechanism normally in-eventing engagement of said knock-off actuator and means operable by-said detector mechanism, upon detection of a broken or sagging warp, to cause said knock-01f device to engage said actuator and thereby efiect a stoppage of the warper. I

4:. Quick-acting warp stop mechanism for warpers comprising detector mechanism, a

continually moving vibrator, a knock-off device, a continually moving actuator having means operable at greater speed than the speed of movement of said vibrator to actuate said knock-off when'engaged therewith, a yieldable controller carried by said v1- brator normally retaining said knock-off de vice out of engagement with said actuator and means operable by said detector mechanism, upon detection of a broken or sagging warp, to cause said controller to effect engagement of said knockoff device with said actuator during the continuation of the same movement of the vibrator in which detection occurred andt-hereby effectra prompt stoppage of the warper. I

5. Quick-acting warp stop mechanism for warpers comprising detector mechanisn'i, a continually moving vibrator, a.k nock-off de vice, a continually moving actuator having means operable at greater speed than the-- speed of movement of said vibrator to actu ate said knock-off device when engaged thereby, a yieldable controller arm pivotally mounted uponsaid vibrator engaging said knock-off device and normally retaining it out of engagementwith said actuatorand provided with a face presenting'a re-entrant angle and means connected to said detector mechanism engaging the re-entrant angle of said controller operable upon detection of a broken or sagging warp to ride upon the inclined walls of the re-entrant angle and thereby cause said controller to yield and permit said knock-off device to engage said actuator, thereby effecting a stoppage of the warper. V

6. Quick-acting warp stop mechanism for warpers comprising a reciprocating detector bar, drop wires for the respective warps f adapted when dropped to arrest the movement of said detector bar, a continually movlng vibrator, a knock-off device, a continually moving-actuator having means operable at a greater speedthan the speed of movementvof said vibrator to actuate said knockoff device when engaged thereby, means for reciprocating said detector bar from said vibrator including a yieldable cont-roller piv- V otally connected to said vibrator having means normally holding said knock-ofi device out of engagement with said actuator and having a face presenting a re-entrant angle and a transmitter connected to said reciprocable detector bar having means frictionally engagingsaid re-entrant angle and operable upon arrest of said detector bar to ride upon an inclined face of said controller and therebydeprcss said controller and cause engagement of the knock-off device with said actuator, thereby effecting a stoppage of the warper.

7. Quiclcac'ting warp stop mechanism for warpers comprising drop wires for the respective warps, co-operating, parallel and juxtaposed stationary and longitudinally reciproeable detector bars provided with complementary teeth presenting vertical edges whereby a falling drop wire engaging the teeth of said bars will arrest the movable bar in either direction of its movement, a continually moving vibrator, a knock-off" device, a continually moving actuator having means operable at greater speed than the speed of movement of said vibrator to actuate said knock-0d when engaged thereby and means controlled by said reciprocable detector bar normally preventing engagement of said knock otl device with said actuator, but operable upon arrest of said detector bar to cause engagement therewith and thereby eii'ect a stoppage of the warper. v

8. Quick-acting warp stop mechanism for warpers comprising drop wires for the respective warps, co-operating, parallel and juxtaposed stationary and longitudinally reciprocable detector bars provided with complementary teeth presenting vertical edges whereby a falling drop wire engaging the teeth of said bars will arrest the movable bar in either direction of its movement, a continually moving vibrator, a knock-off device, a continually moving actuator having means operable at greater speed than the speed of movement of said vibrator to actuate said knock-01f when engaged thereby, a yieldable controller moving with said vibrator, means operable by said detector bar when arrested in either direction of its movement to cause said controller, during the continuation of the movement of the vibrator in the same direction after the arrest of the movable de tector bar occurs, to effect engagement of the knock-oil device with said actuator and thereby promptly cause a stoppage of the warper.

9. Quick-acting warp stop mechanism for warpers, comprising detector mechanism, a

- continually moving vibrator, a knock-off de vice, a continually moving actuator operable to actuate said knock-off device when en g'aged therewith, a controller carried by said vibrator acting normally to prevent said knock-ofi? from engaging said actuator, but operable by, said detector mechanism, upon detection oi a broken or sagging warp, to cause such engagement during the continuation of the movement of the vibrator in the same direction in which said detection occurred, and thereby to eii'ect a stoppage of the warper.

In testimony whereof, I have signed my name to this specification.

ALONZO E. RHOADES. 

